Tobacco-cutter



2 Sheets-Sheet 1.

(No Model.)

JLB. ADT. TOBACCO GUTTER.

Patentd June 7,1898.

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(No Model.) 2 Sheets Sheet 2.

J. B. ADT. TOBAGGO CUTTER.

No. 605,371. Patented June 7,1898.

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NlTED STATES.

PATENT Urrrcn.

JOHN BLADT, OF BALTIMORE, MARYLAND. I

TOBACCO-CUTTER SPECIFICATION forming part of Letters Patent NO. 605,371, dated June '7, 1898.

Application filed October 11, 189'7- Serial No. 654,778. (No model.) i

To all whom it may. concern:

Be'it known that 1, JOHN B. ADT, of the city of Baltimore, State of Maryland, have invented certain Improvements in Tobacco-Cutters, of which the following is a specification.

This invention relates to certain improvements in the invention described in Letters Patent No. 400,723, granted to me on the 2d day of April, 1889, for certain improvements ing for the comb shown and described in the said Letters Patent removable independent bridge-pieces, the ends of which are supported by the spacing-collars between the saws, the

, edges of the said bridge-pieces cooperating tobacco-cutter.

with the edges of the saws to form cutters, as will hereinafter fully appear.

In the further description ofthe said in-.

vention which follows reference is made to the accompanying drawings, forming a part thereof, and in which Figure 1 is a vertical section of the improved Figs2 is a top view of the same with the upper part of the outer casing in removed. Figs. 3,4, 5, and 6 are enlarged details of the machine.

Referring now to the drawings, A is the frame of the machine. 7

B B are shaftsresting and adapted to be turned in suitable bearing-boxes ct. The shaft B is the driving-shaft and is for that purpose provided with a tight and a loose driving-pulley, respectively denoted by b and o. The other shaft B is driven from the drivingshaft 13 by means of the spur gear-wheels d.

O O are toothed disks or saws on the shafts B B, separated by spacing-collars e, and they, together with the spacing-collars, are clamped by means of nuts (not shown) in a manner substantially the same as that shown and described in the said Letters Patent. The saws are set on the shafts so that their teeth are not in alinement with the shafts, they forming a spiral around theshafts, as shown and described in the said Letters Patent.

D D are bridge cutters (shown on an. enlarged scale in Figs. 4, 5, and 6)- which, in connection with the saws, form the cutting devices of. the machine. The width of these bridge cutters at their upper surface corresponds with the distance between the saws, and they are tapered slightly, as seen in crosssection, to give clearance below the cutting edges. The bridge cutters are provided with curved ends f, which rest on the collars e, between the saws, and are held in place by their own weight. They may be made of steel, and thereby furnish their own cutting edges; but it is preferred to make themof brass or iron and secure to their upper surfaces steel plates 9, the sides of which furnish the cutting edges,

as shown in Figs. 4, 5, and 6, in which the steel plates are shown as held to the cutters proper by rivets h. The advantage, of this improved construction is that the bridge cutters when their edges become worn may be easily removed and others substituted therefor.

E Eare annular headssupported by the J is a wire-cloth screen shaken by means of r a link j, connected to a crank-shaft 7c, driven from the shaft B by means of the pulleys m and n and the belt 0. i a

.The cylindrical sieve F is supported by the rollers K and K on shafts p and p, theone 10 being driven by a belt g from the crank= shaft 70. p The tobacco introduced into the sieve through the hopper in the rotation of the former is carried. upward and falls 011 and passes through the cutters, and that portion of it which isreduccd to the proper size, together with the dust, passes through the sieve and falls onto the shaking-screen, from which the coarser particles are delivered to any receptacle placed exteriorly of the machine to receive it. The dust passes through the screen to the drawer I. The particles of tobacco which are too large to pass through the sieve are again carried up by the sieve and again fall on the cutters and another portion of them reduced in size, the operation being a :0 continuous one.

I claim as my invention- In a tobacco-cutter, the combination of a revoluble sieve, a pair of revoluble shafts Within the sieve, saws on the said shafts, spacing-collars between the saws, and removable bridge cutters of awidth corresponding with that of the spacing-collarssituated between the saws with their ends resting on and supported by the said spacing-collars, substantially as specified.

JOHN B. ADT.

Witnesses:

DANL. FISHER, WM. T. HOWARD. 

